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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
01.10.-19.10.2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Report date:
2009

Materials and methods

Test guideline
Qualifier:
no guideline followed

Test material

Constituent 1
Chemical structure
Reference substance name:
Methylphosphonic acid
EC Number:
213-607-2
EC Name:
Methylphosphonic acid
Cas Number:
993-13-5
Molecular formula:
CH5O3P
IUPAC Name:
methylphosphonic acid
Test material form:
other: liquid

Results and discussion

pH value
pH value:
0.9
Concentration:
70 vol%
Remarks on result:
other: in water

Applicant's summary and conclusion

Conclusions:
The pH of methylphosphonic acid (70 % aq solution) was reported to be 0.9.